Mechanics of Materials, SI Edition
9th Edition
ISBN: 9781337093354
Author: Barry J. Goodno, James M. Gere
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 3.11.11P
A tubular aluminum bar (G = 4 × 106 psi) of square cross section (see figure) with outer dimensions 2 in. × 2 in. must resist a torque T = 3000 1b-in.
Calculate the minimum required wall thickness Tminif the allowable shear stress is 4500 psi and the allowable rate of twist is 0.01 rad/ft.
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on-the-job conditions.
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Application questions 1-7 refer to the drawing above.
1. What does the flatness tolerance labeled "G" apply to?
Surface F
A.
B.
Surfaces E and F
C. Surfaces D, E, H, and I
D.
The derived median plane of 12 +0.2
0.5
0.5
CF) 20 ±0.2
0.1
7.
O
12 ±0.2-
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ASME Y14.5-2009
Chapter 3 Solutions
Mechanics of Materials, SI Edition
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